Alfred Krupa, Bernard Sadow, and Robert Plath, men whose inventions over thirty-three years during the late twentieth-century ushed in a new epoch in human history — the era of the wheeled suitcase.
Now, the fact that we didn’t figure out putting wheels on a suitcase until the late 20th century (and that when we did it took several long-fought permutations before wheeled suitcases were worth a damn) is a chilling testimony to how quickly General Artificial Intelligence will leave our species in the dust.
Tiger Riding for Beginners 